Home / 166,861.34-230,266.74-90,378.98

Finding the Fourth Proportional to 166,861.34, 230,266.74 and 90,378.98

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Solution

The fourth proportional to 166,861.34, 230,266.74 and 90,378.98 is: 124,721.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,861.34 : 230,266.74 = 90,378.98 : x
  2. Step 2: Convert to fraction form
    166,861.34/230,266.74 = 90,378.98/x
  3. Step 3: Cross multiply
    166,861.34x = 230,266.74 × 90,378.98
  4. Step 4: Simplify right side
    166,861.34x = 20,811,273,089.13
  5. Step 5: Solve for x
    x = 20,811,273,089.13/166,861.34
  6. Step 6: Final answer
    x = 124,721.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.